Lower connecting plate for motorcycle

By designing a buffer spring and a force-relieving mechanism in the lower connecting plate of the motorcycle, the impact of rebound force is reduced, solving the problem of buffer instability. Furthermore, the transmission tube and transmission column can be easily separated by a magnetic block connector, improving the convenience of inspection and maintenance.

CN224256853UActive Publication Date: 2026-05-19ZHEJIANG TONG XING METALLIC FORGINGS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG TONG XING METALLIC FORGINGS
Filing Date
2025-05-21
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

The existing motorcycle lower plate has an unstable shock absorption effect, and the transmission tube and transmission column are difficult to inspect and maintain.

Method used

A buffer spring was designed in conjunction with a force-relieving mechanism and a connecting mechanism. The use of multiple grooves, a retaining ball, and a first spring reduces the impact of buffer rebound force. The design of a magnetic block and a connecting block enables convenient separation of the transmission tube and the transmission column.

Benefits of technology

It improves the structural stability during the buffering process and facilitates the disassembly of the transmission tube and transmission column, making inspection and maintenance easier.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of lower connecting plates, and particularly relates to a lower connecting plate for a motorcycle, which comprises a plate body, a plurality of annular and uniformly distributed mounting holes are formed in the plate body, a transmission column is fixedly mounted at the top of the plate body, and a transmission pipe is slidably sleeved on the outer side of the transmission column. A guide column is fixedly connected to the top of the inner wall of the transmission pipe, the guide column is slidably connected with the transmission column, a buffer spring is arranged on the outer side of the guide column, and one end of the buffer spring is fixedly connected with the transmission pipe. Through the effect of the buffer spring, vibration force borne by the transmission pipe can be buffered, the influence of vibration on use of the plate body can be reduced, in the buffering process, relying on matched use of the groove, the clamping ball and the first spring, force unloading buffering can be conducted on bounce of the spring during buffering, the shaking influence of the bounce on the transmission pipe can be effectively reduced, and the service life of the transmission pipe is prolonged. And the structural stability during buffering can be improved.
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Description

Technical Field

[0001] This utility model relates to the field of lower connecting plate technology, specifically a lower connecting plate for motorcycles. Background Technology

[0002] Motorcycles are powered by gasoline engines, although electric models are also available. They are two-wheeled or three-wheeled vehicles steered by handlebars. Motorcycles are widely used in various fields due to their lightness, agility, and speed. The motorcycle steering system is an important component, and the lower control plate is a crucial part of the steering system.

[0003] Utility model patent CN211710998U discloses a lower connecting plate for a motorcycle steering gear, including a plate body. A support tube is fixedly connected to the center of the upper end of the plate body. A transmission column is installed inside the support tube. The end of the transmission column away from the plate body passes through the corresponding opening of the support tube and extends outward. The support tube is connected to the transmission column through two symmetrically arranged quick-release mechanisms. The quick-release mechanism includes a quick-release groove, a spring, a quick-release block, and a quick-release hole. The quick-release groove is formed on the wall of the transmission column. One end of the spring is fixedly connected to the bottom of the quick-release groove, and the other end of the spring is connected to one end of the quick-release block. The quick-release hole is formed on the wall of the support tube corresponding to the position of the quick-release block. The end of the quick-release block away from the spring passes through the opening of the quick-release groove and extends into the quick-release hole. This utility model allows the transmission column to be quickly removed from the support tube, and achieves shock absorption without affecting the normal use of the lower connecting plate for the steering gear.

[0004] In the aforementioned prior art, during the use of the lower connecting plate, the vibration force can be buffered and damped by the spring. However, due to the influence of the spring's rebound force, the transmission tube will shake and become unstable after buffering, affecting the damping effect. Furthermore, the transmission tube and the transmission column are not easy to separate, resulting in insufficient inspection and maintenance. Utility Model Content

[0005] The purpose of this utility model is to provide a lower connecting plate for motorcycles, which solves the problem of insufficient stability of the transmission tube structure during buffering and shock absorption, and also solves the problem of inconvenience in separating the transmission tube from the transmission column.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lower connecting plate for a motorcycle, comprising a plate body, wherein the plate body has a plurality of annular and evenly distributed mounting holes, a transmission column is fixedly mounted on the top of the plate body, a transmission tube is slidably sleeved on the outer side of the transmission column, a guide column is fixedly connected to the top of the inner wall of the transmission tube, the guide column is slidably connected to the transmission column, a buffer spring is provided on the outer side of the guide column, one end of the buffer spring is fixedly connected to the transmission tube, the other end of the buffer spring is in contact with the transmission column, a force-relieving mechanism is provided on the guide column, and a connecting mechanism is provided on the transmission column.

[0007] Preferably, the force-relieving mechanism includes a groove. The transmission column has a groove inside, and a retaining ball is movably fitted inside the groove. A sliding block is movably fitted outside the retaining ball, and the sliding block is slidably connected to the transmission column and fixedly connected to the guide column. A slider is movably fitted outside the retaining ball, and the slider is slidably connected to the sliding block. A first spring is provided inside the sliding block. By designing the force-relieving mechanism, the rebound force of the buffer spring can be reduced for force relief and buffering.

[0008] Preferably, there are multiple grooves, which are evenly distributed inside the transmission column. By designing multiple grooves, the ball can roll into the grooves at different positions.

[0009] Preferably, one end of the first spring is fixedly connected to the slider, and the other end of the first spring is fixedly connected to the slide block. By designing the first spring, the force of the first spring can be applied to the slider.

[0010] Preferably, the connecting mechanism includes a fixed rod, which is fixedly connected inside the transmission column. A second spring is provided on the outer side of the fixed rod. Two symmetrically distributed sliding rods are slidably sleeved on the outer side of the fixed rod. A magnetic block is fixedly connected to the bottom of each sliding rod, and the magnetic block is slidably connected to the transmission column. A magnet is fixedly connected inside the transmission column. A connecting block is fixedly connected to the outer side of the sliding rod, and the connecting block is slidably connected to both the transmission column and the transmission tube. A pressing block is fixedly connected to the outer side of the sliding rod, and the pressing block is slidably connected to the transmission column. This connecting mechanism facilitates the separation of the transmission tube and the transmission column.

[0011] Preferably, one end of the second spring is fixedly connected to one of the slide rods, and the other end of the second spring is fixedly connected to the other slide rod. The second spring is designed so that its force can act on the slide rod.

[0012] Preferably, the transmission tube has a connecting groove inside, and a connecting block is slidably connected inside the connecting groove. By designing the connecting groove, the connecting block can slide along the transmission tube.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, through the design of a buffer spring, can buffer the vibration force on the transmission tube, thereby reducing the impact of vibration on the use of the plate. During the buffering process, the groove, the retaining ball, and the first spring work together to unload and buffer the spring's rebound force, effectively reducing the impact of the rebound force on the shaking of the transmission tube and improving the structural stability during buffering.

[0015] 2. This utility model achieves the connection between the transmission tube and the transmission column by designing a sliding connection between the connecting block and the transmission tube. At the same time, the transmission tube can slide relative to the transmission column. The connecting block and the connecting groove can be separated by pressing the pressing block, and the transmission tube and the transmission column can be disassembled for easy inspection and maintenance and convenient use. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A partial three-dimensional sectional view of the structure;

[0018] Figure 3 This utility model Figure 2 Enlarged view of point A;

[0019] Figure 4 This utility model Figure 2 Enlarged view of point B.

[0020] In the diagram: 1. Plate; 2. Mounting hole; 3. Transmission column; 4. Transmission pipe; 5. Guide column; 6. Buffer spring; 8. Force relief mechanism; 9. Connecting mechanism; 81. Groove; 82. Ball catcher; 83. Slide block; 84. Slider; 85. First spring; 91. Fixed rod; 92. Second spring; 93. Slide rod; 94. Magnetic block; 95. Magnet; 96. Connecting block; 97. Connecting groove; 98. Pressing block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1 , Figure 2 A lower connecting plate for a motorcycle includes a plate body 1. The plate body 1 has multiple annular and evenly distributed mounting holes 2 inside. A transmission column 3 is fixedly installed on the top of the plate body 1. A transmission tube 4 is slidably sleeved on the outer side of the transmission column 3. A guide column 5 is fixedly connected to the top of the inner wall of the transmission tube 4. The guide column 5 is slidably connected to the transmission column 3. A buffer spring 6 is provided on the outer side of the guide column 5. One end of the buffer spring 6 is fixedly connected to the transmission tube 4, and the other end of the buffer spring 6 contacts the transmission column 3. A force-relieving mechanism 8 is provided on the guide column 5, and a connecting mechanism 9 is provided on the transmission column 3.

[0023] Please see Figure 1 , Figure 2 , Figure 3 The unloading mechanism 8 includes a groove 81. The transmission column 3 has a groove 81 inside. A retaining ball 82 is movably sleeved inside the groove 81. There are multiple grooves 81, which are evenly distributed inside the transmission column 3. By designing multiple grooves 81, the retaining ball 82 can roll into the grooves 81 at different positions. A slide block 83 is movably sleeved on the outside of the retaining ball 82. The slide block 83 is slidably connected to the transmission column 3 and fixedly connected to the guide column 5. A slider 84 is movably sleeved on the outside of the retaining ball 82. The slider 84 is slidably connected to the slide block 83. A first spring 85 is provided inside the slide block 83. One end of the first spring 85 is fixedly connected to the slider 84, and the other end of the first spring 85 is fixedly connected to the slide block 83. By designing the first spring 85, the force of the first spring 85 can act on the slider 84. By designing the unloading mechanism 8, the rebound force of the buffer spring 6 can be reduced for unloading and buffering.

[0024] Please see Figure 1 , Figure 2 , Figure 4 The connecting mechanism 9 includes a fixed rod 91, which is fixedly connected inside the transmission column 3. A second spring 92 is provided on the outside of the fixed rod 91. One end of the second spring 92 is fixedly connected to one of the sliding rods 93, and the other end of the second spring 92 is fixedly connected to the other sliding rod 93. By designing the second spring 92, its force can act on the sliding rod 93. Two symmetrically distributed sliding rods 93 are slidably sleeved on the outside of the fixed rod 91. A magnetic block 94 is fixedly connected to the bottom of the sliding rod 93. The magnetic block 94 is connected to the transmission column. 3. Sliding connection: A magnet 95 is fixedly connected inside the transmission column 3, and a connecting block 96 is fixedly connected to the outside of the slide rod 93. The connecting block 96 is slidably connected to the transmission column 3 and the transmission tube 4 respectively. A connecting groove 97 is opened inside the transmission tube 4, and the connecting block 96 is slidably connected inside the connecting groove 97. By designing the connecting groove 97, the connecting block 96 can slide along the transmission tube 4. A pressing block 98 is fixedly connected to the outside of the slide rod 93, and the pressing block 98 is slidably connected to the transmission column 3. By designing the connecting mechanism 9, it is convenient to separate the transmission tube 4 from the transmission column 3.

[0025] The specific implementation process of this utility model is as follows: When in use, through the action of the buffer spring 6, when the transmission tube 4 is vibrated, the vibration force will cause the transmission tube 4 to drive the guide post 5 to move down. The transmission tube 4 can squeeze the buffer spring 6. Under the elastic action of the buffer spring 6, the vibration force can be buffered, and the impact of vibration on the use of the plate 1 can be reduced.

[0026] During the buffering process, the rebound force of the buffer spring 6 will push the transmission tube 4 upward, which will cause the guide post 5 to drive the slide 83 upward. The slide 83 will drive the retaining ball 82 upward, and the retaining ball 82 will roll along the arc surface of the groove 81. The retaining ball 82 will be squeezed and pushed to move horizontally. The retaining ball 82 will roll into the slide 83. The retaining ball 82 will drive the slider 84 to move horizontally and squeeze the first spring 85, which can separate the retaining ball 82 from the groove 81. As the slide 83 moves upward, the elastic action of the first spring 85 will give the slider 84 a counter-pushing force, which can push the retaining ball 82 into the groove 81 at another position. This can provide a certain resistance to the upward movement of the slide 83, so that the rebound force of the buffer spring 6 will be converted into the elastic deformation of the first spring 85. This can effectively reduce the impact of the rebound force on the shaking of the transmission tube 4 and improve the structural stability during buffering.

[0027] When it is necessary to disassemble the transmission tube 4, push the pressing block 98 inward directly. The pressing block 98 will push the slide rod 93 to move horizontally. The slide rod 93 can slide along the fixed rod 91 to squeeze the second spring 92. The slide rod 93 will drive the connecting block 96 to move horizontally. At the same time, the slide rod 93 will also drive the magnetic block 94 to move horizontally. When the magnetic block 94 is attracted to the magnet 95, the connecting block 96 can be separated from the connecting groove 97. Then, the transmission tube 4 can be pulled out from the transmission column 3 by moving the transmission tube 4 upward, which is convenient for inspection and maintenance and easy to use.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lower connecting plate for a motorcycle, comprising a plate body (1), characterized in that: The plate (1) has multiple annular and evenly distributed mounting holes (2) inside. A transmission column (3) is fixedly installed on the top of the plate (1). A transmission tube (4) is slidably sleeved on the outside of the transmission column (3). A guide column (5) is fixedly connected to the top of the inner wall of the transmission tube (4). The guide column (5) is slidably connected to the transmission column (3). A buffer spring (6) is provided on the outside of the guide column (5). One end of the buffer spring (6) is fixedly connected to the transmission tube (4). The other end of the buffer spring (6) is in contact with the transmission column (3). A force-relieving mechanism (8) is provided on the guide column (5). A connecting mechanism (9) is provided on the transmission column (3).

2. The lower connecting plate for a motorcycle according to claim 1, characterized in that: The unloading mechanism (8) includes a groove (81). The transmission column (3) has a groove (81) inside. A retaining ball (82) is movably sleeved inside the groove (81). A sliding block (83) is movably sleeved on the outside of the retaining ball (82). The sliding block (83) is slidably connected to the transmission column (3). The sliding block (83) is fixedly connected to the guide column (5). A slider (84) is movably sleeved on the outside of the retaining ball (82). The slider (84) is slidably connected to the sliding block (83). A first spring (85) is provided inside the sliding block (83).

3. A lower connecting plate for a motorcycle according to claim 2, characterized in that: The number of grooves (81) is multiple, and the multiple grooves (81) are evenly distributed inside the transmission column (3).

4. A lower connecting plate for a motorcycle according to claim 2, characterized in that: One end of the first spring (85) is fixedly connected to the slider (84), and the other end of the first spring (85) is fixedly connected to the slide block (83).

5. A lower connecting plate for a motorcycle according to claim 1, characterized in that: The connecting mechanism (9) includes a fixed rod (91). The fixed rod (91) is fixedly connected inside the transmission column (3). A second spring (92) is provided on the outside of the fixed rod (91). Two symmetrically distributed sliding rods (93) are slidably sleeved on the outside of the fixed rod (91). A magnetic block (94) is fixedly connected to the bottom of the sliding rod (93). The magnetic block (94) is slidably connected to the transmission column (3). A magnet (95) is fixedly connected inside the transmission column (3). A connecting block (96) is fixedly connected to the outside of the sliding rod (93). The connecting block (96) is slidably connected to the transmission column (3) and the transmission pipe (4) respectively. A pressing block (98) is fixedly connected to the outside of the sliding rod (93). The pressing block (98) is slidably connected to the transmission column (3).

6. A lower connecting plate for a motorcycle according to claim 5, characterized in that: One end of the second spring (92) is fixedly connected to one of the slide rods (93), and the other end of the second spring (92) is fixedly connected to the other slide rod (93).

7. A lower connecting plate for a motorcycle according to claim 1, characterized in that: The transmission tube (4) has a connecting groove (97) inside, and a connecting block (96) is slidably connected inside the connecting groove (97).